Clutch-operating mechanism.



APPLICATION FILED JUNE 10, 1808.

H. L. TURNBY.

GLUTGH OPERATING MEGHANISM.

.gena r/ 2 SHEETS- SHEET 2.

Moulton H. L. TURNEY.

OLUTGH OPERATING MEGHANISM.

. APPLICATION FILED TUNE 10 1908. 906,585, Patented Dec. 15,1908.

/Vihwooeo l j,

I7/ agi UNTTED STATES PATENT OFFTOE.

HARRY LEON TURNEY, OF PORTLAND, OREGON.

CLUTCH-OPERATING MECHANISM.

Specification of Letters Patent.

Application filed. June 10, 1908. Serial No. 437,773.

No. 906,585. Patented Dec. i5, 190s.

engage the tapered walls ol an annular groove e lormed in one end of the drum, and suitable a citizen oi' the United States, residing at means is provided lor normally forcing thesel Portland, in the county et iiultnouiah and clutch members d and e apart. One end ot State ol Oregon, have invented a new and tne shalt is provided with a diametric: lly useful Clutch-Operating Mechanism, ot which disposed slot thi'ough which extends a cross the following is a specification. key q arranged to operato against a collar t This invention relates to clutch operating bearing against one end ol" the winding drum. mechanisms, and more particularly to de- This cross key is engaged by a thrust pin i vices employed tor applying and releasing a slidably mounted in a i'ecess formed in the clutch for logging and hoisting engines. end ol" the shalt.

One of the principal objects ol the inveii- The piescnt invention relates to means 'for actuating the thrust pin t. One end ot the tion is to provide a lorin et' clutch operating shalt is recessed and carries a mit 10 provided mechanism in which steam or other actuating fluid is employed to move the clutch to with a partially split portion as indicated at locking and release positions, and which shall 1 1 whereon is formed lugs 12 having openings be an improvement upon the clutch opeiatfor the passage of a clam )ing bolt 13. The nut is provided with a holiow cylindrical porin(T mechanism for which a atent was Oranttion having a screw thread 14 termed therein ed t`o me 876,609 and bearing' the date Jan. 14, 1908. and adapted to receive the threaded end of a cylinder 15. By means of the bolt 13 the A further object of the invention is to rovide in tlns improved mechanism, a nove arcylinder can be held irmly in any desired position alter being screwed into the nut 10.

rangement of certain of the parts whereby The cylinder 15 is provided with a head 1G,

extensive wear will be obviated.

A still 'further object ot' the invention is to and in said cylinder is arranged a piston 17 provide an im roved means whereby the ishaving suitable packing rings. At the inner ton may at all times float freely in the cy in- 1end lolf the cylinder 15 is a diaphragm or inner ieac 1S.

der and yet positively actuate the clutching Extending through a stulling box in the members.

Vith these and other objects in view, as outer head of the cylinder is a [luid supply will moie r'ully hereinafter a pear, the invenpipe 20 which communicates with a port 21 tion consists iii certain nove ties in construcl that leads through the outer head and the wall of the cylinder to the inner end of said tion and arrangement ot parts hereinafter fully described and illustrated in the accomcylinder, this port serving tor the admission or steam or other Huid to 'force the piston panyiiig drawings and specilically pointed outwards or to clutch releasing position.

out in the claims.

In the accompanying drawings like charac- Wyithin the steam supply pipe 2() is arranged ters of reference indicate like parts in the seva second steam supply pipe 22 that communieral views cates with the outer portion of the cylinder Figure 1 is an assembled side elevation and is held in place by a suitable flange 2L1 partly in section showing the device as ap- 'fitting against the inner wall ol the cylinder plied to the hoisting drum of an engine of the head. The inner head 1S of the cylinder is character described. Fig. 2 is a longitudinal bored to 'form a small cylinder 'for the recepcnd view of the improved form et the clutch tion et a plunger or thrust block 25 having suitable packing rings 26 and this thrust operating mechanism, the same being enlarged, more distinctly to bring out the parts. block engages against the end of the tln'ust Fig. 3 is a detail section to reduced scale, pin t. Extending across the inner portion of taken on the line A-A ot Fig. 2. Fig. 4 is the cylinder, and preferably formed integral a lan view ol the piston removed from the therewith are two spaced bridge pieces 27 cy inder. Fig. 5 is a detail elevation of the having openings for the reception of transversely disposed pins 2S on which are equalizing bar.

In the aforesaid Letters-Patent there was mounted two cams 29. These cams have shown a winding drinn a loosely mounted on arms 30 wherecn are formed lugs 31 arranged a shalt b, to which is keyed or otherwise seto bear against the end or' the thrust block 25 as clearly seen in Fig. 2.

cured a driving gear c. The gear carries an annular friction ring d which is arranged to In order to provide a means Alor permitting To all whom it may Concern: l Be it known that I, iliiaitr linen liiiiNnY iianges 32.

a free lateral movement of the the operation of the device, there is formed on the inner face of guides 3l having inwardly bent lips or Slidably mounted Within the guides 31 is an equalizing bar 33, having suitable openings for the reception of pins 34. The equalizing bar 33 is recessed interiorly as indicated at 35, and links 36 are mounted on the pins 34 to lie in the recess 35. The arms 30 of the cams 29 are forked at the ends and receive the links 36, the same being held to the arms by means of suitable pivot pins 37 In order to prevent the piston 17 striking the head 16 when it be in release position, the cams 29 are provided with shouldered portions as indicated at 38 and the inner head 18 is provided with similar shouldered portions 39 arranged to contact with the shouldered portion 38 when the piston is at the nearest point desired to the head 16.

In order to actuate the device a valve 40 is provided arranged to be operated by a suitable handle 41. The valve 40 is connected to the pipes 22 and 20 by suitable pressure pipes 42 and is so arranged that the steam may be admitted through either of the pressure pipes 42 while being exhausted from the other pipe. This valve and the parts conllected thereto may be precisely the same as that described in the Letters-Eatent above referred to and nc detailed description of the same is deemed necessary in the present case as it forms no part of the invention herein set forth.

It will be noticed that when the piston is forced inward, or to the right of Fig. 2, the equalizing bar 33 will permit the pivot 34 to assume such position that the pressure on each of the lugs 31 will be equal and the thrust red 25 will thrust the parts in with an equal pressure on both sides thereof, thus l obviating binding or undue lateral pressure. It is further to be noticed that by reason of the peculiar construction of the guides and equalizing bar 33, the piston 17 is allowed a free lateral movement within the cylinder so that there is-no binding at any point and undue wear of such parts of the cylinder or piston is thus obviated.

It is obvious that minor changes may be made in the form and proportions of the depiston during I vice without said piston, a pair of departing from the material 1 principles thereof. It is not therefore del sired to confine the invention to the exact l form herein shown and described but it is l wished to include all such as properly come l within the scope thereof. l Having thus described the invention, what ,f is claimed, is l. In a device of the kind described, a cylinder, a thrust block mounted therein, a piston, a cam lever for actuating said thrust block, and a connection between the cam lever and piston arranged to permit free lateral movement of said piston.

l2. In a device of the kind described, a cylinder, a thrust block mounted therein, a pis- I ton, a cam lever pivoted in said cylinder to I actuate the thrust block, a link connected to said cam lever and means to connect the link l and piston and permit free lateral movement of the latter.

3. In a device of the kind described, a cylinder, a thrust block mounted therein, a piston, a cam lever pivoted in said cylinder to actuate the thrust block, a link connected to said cam lever, and a bar held on said piston free to slide laterally thereon and connected to said link.

4. In a device of the kind described, a cylinder, a thrust block mounted therein., a piston, a cam lever pivoted in said cylinder to actuate the thrust block, a link connectedk to said cam lever, guides formed on said piston,

and a bar held on said piston by said guides and freely movable in the guides and pivotally connected to said links.

5. In a device of the kind described, a cylinder, a thrust block mounted therein, a piston held to reciprocate in said cylinder, cam

| levers pivoted in said cylinder to actuate the l thrust block, links connected to said camlevers, guides formed on said piston, and a l bar held on said piston by said guides and l freely movable therein and pivotally connected to said links.

In testimony that I claim the foregoingas l my own, I have hereto affixed my signature in the presence of two witnesses.

. HARRY LEON TURNEY.

Vitnesses:

CHAs. E. MACK, l J. L. JENNINGs. 

